package com.loop.netty.codec2;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;

import java.util.Random;

/**
 * @author zhangxiaolu
 * @since 2023-09-10 22:36
 */
public class NettyClientHandler extends ChannelInboundHandlerAdapter {

    // 当通道就绪就会触发该方法
    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        // 随机发送 Boss 或 Worker 对象到服务器
        int i = new Random().nextInt(3);
        MyDataInfoBuf.MyDataInfo myDataInfo = null;
        if (i == 0) { // 发送 Boss 对象
            myDataInfo = MyDataInfoBuf.MyDataInfo.newBuilder().setDateType(MyDataInfoBuf.MyDataInfo.DateType.BossType)
                    .setBoss(MyDataInfoBuf.Boss.newBuilder().setId(5).setName("Boss").build()).build();
        } else { // 发送 Worker 对象
            myDataInfo = MyDataInfoBuf.MyDataInfo.newBuilder().setDateType(MyDataInfoBuf.MyDataInfo.DateType.WorkerType)
                    .setWorker(MyDataInfoBuf.Worker.newBuilder().setAge(23).setName("worker").build()).build();
        }
        ctx.writeAndFlush(myDataInfo);
    }

    // 当通道有读取事件时触发该方法
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        ByteBuf buf = (ByteBuf) msg;
        System.out.println("客户端收到消息：" + buf.toString(CharsetUtil.UTF_8));
        System.out.println("服务器的地址是：" + ctx.channel().remoteAddress());
    }

    // 发生异常时触发该方法
    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("客户端异常了");
        cause.printStackTrace();
        ctx.close();
    }
}
